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Maxdim Dimmer Controller Model - B

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Part# 11-08176
MFR Model# 9100-001-B


  • 5-35 volts @ 15 Amps
  • Ring Connectors
  • Controlled Output:
    0 to 5-35 VDC - 0 to 15 A


  • 75 Watts @5 VDC
  • 180 Watts @12 VDC
  • 360 Watts @24 VDC
  • 420 Watts @28 VDC
  • 700 Watts @35 VDC


  • Aircraft Lighting
  • Comply to Cessna AD 93-24-15 about cockpit fires. We have the AMOC allowing this installation for the MaxDim.
  • Excellent control of Nulite instrument lighting
  • Excellent LED control
  • Smaller DC motors
  • STC, PMA, RTCA/DO-160E SEC 21: RFE Qualified
  • Instrument Panels
  • Nulite dimmers
  • UMA pre-inverter dimmer
  • Avion Glare shield pre-inverter dimmer
  • Boat Cruiser Cabins
  • LED lit panels
  • Hundreds of DC Lighting Control applications
  • Assembled in the USA


  • 12-35 VDC operation
  • Install with Standard Supplied solderless Connectors
  • Potentiometer Rotation: 270 Rotational Life: 500K Turns
  • Operating Temperature Range: -30 C to +65 C
  • Internal temperature Protect: +85 C
  • Storage Temperature: -40 C to +100 C
  • Maximum Internal Temperature: @12.5A +15 C
  • Enclosure Material: Bayer FR 110 Resin Meets UL 94
  • Flame Rating: V-2 (0.03in) V-0 (0.059in) 5VB (0.098in) 5VA (0.13in)
  • STC & PMA approved.
  • Conforms to RTCA/DO-160E SEC 21: RFE (EMI)
  • One Year limited warranty
  • Weight: 0.58 oz (16.6g)
  • What's in the box?
  • MaxDim unit, installation instructions, color coded terminals,
  • reference panel label, STC printout for your logs, installation template, and knob.


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Works great to replace the defective original rheostats in my Cessna 150L. Something worth noting -- the slightest bit of panel modification was needed to make them fit in the original space (about 20 seconds with a dremel and done).

Jonathan A
May 10, 2018

Another MAXDIM product for me. I used the DUODIM for dash lights and overhead but do not like dash lights and EI gauges controlled by same line. So I purchased this singe dimmer and it is controlling ALL my EI gauges. This way I have more control over lighting intensities, dash vs EI.

Mike S
February 7, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is the MaxDim dimmer model B analog or solid state unit?

This dimmer is solid state.

Q: Are these MaxDim dimmer model B units PWM dimmers or straight analog dimmers?

Per the MFG. - they are PWM and have passed the DO-160 (EMI noise) testing required by the FAA.

Q: Can you use these dimmers for incandescent panel lights as well as LEDs?

Yes this dimmer can be used on both. Plug and play.

Q: Can this Maxdim dimmer be connected to the dim input of a Garmin GTN 650/750?

Some Garmin units have internal PWM (Pulse Width Modulation) dimming circuits. If these units have internal PWM dimming and it cannot disabled, you should not hook it up to our dimmer. It is not good practice to use one PWM dimmer to dim another unit using its own PWM dimming. If the Garmin unit does not have internal PWM dimming or if it does but the internal PWM dimming can be disabled, then the unit should work fine with our dimmer.

We always recommend confirming in the Garmin manual before installing or trying any subcomponent.

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